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Craftsman modellawn tractor will not start. New selenide

Customer Question
Craftsman model###-##-####lawn tractor will not...
Craftsman model###-##-####lawn tractor will not start. New selenide fuse good. Brake/clutch set shifted to neutral. Will start when jumped from + battery terminal directly to starter. There is a four terminal connector but can't find no place to connect it.
Submitted: 2 years ago.Category: Small Engine
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Answered in 58 minutes by:
9/24/2015
Technician: JohnF2015, Technician replied 2 years ago
JohnF2015
JohnF2015, Technician
Category: Small Engine
Satisfied Customers: 1,159
Experience: Owner/Service Technician at S & J Small Engines
Verified

Hi, my name is***** will be assisting you.

When you hooked the new solenoid up did you make sure that the small wire with the inline fuse is attached to the same post on the solenoid as the cable coming down from the battery to the solenoid. If it is not hooked to the same post then the entire electrical system will be dead, you won't be getting voltage to the ignition switch.

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Customer reply replied 2 years ago
I hooked the new solenoid up the same as the one I removed. So it should be good
Technician: JohnF2015, Technician replied 2 years ago

I have seen a lot of times when the wiring gets switched and people don't realize it, so I have to check to make sure.

Do you have a volt meter so that we can do some voltage test to determine where the problem is?

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Customer reply replied 2 years ago
no I don't
Technician: JohnF2015, Technician replied 2 years ago

Do you have a 12 volt test light?

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Technician: JohnF2015, Technician replied 2 years ago

We first need to determine if we are getting voltage to the ignition switch on the red wire. If you can look at the terminals on the back of the ignition switch you should find lettering on each terminal, we need a constant voltage coming to the 'B' terminal on the ignition switch. If you are getting voltage there then we can check for voltage on the 'S' terminal when you turn the key to start the machine, this will tell us if the ignition switch is working properly or not.

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Customer reply replied 2 years ago
No but I can get one but not until tomorrow at best. I am be able to get a meter.
Technician: JohnF2015, Technician replied 2 years ago

If you can get a meter then we can continue from there. Once you have a meter and are ready to proceed with some test then come back here and we can continue.

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Customer reply replied 2 years ago
OK I WILL. HOW DO I GET BACK TO YOU?
Technician: JohnF2015, Technician replied 2 years ago

All you need to do is come back to our conversation here and we can continue. You should also be receiving email notifications of our conversation here as well so you can also check your email.

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Customer reply replied 2 years ago
I will be getting a meter tomorrow. You must understand that working
with one all new to me. You must be specific and clear who the meter
is to set, where the probes are to placed and what I should be looking
for. I'm a novice when it comes to this.
Technician: JohnF2015, Technician replied 2 years ago

Okay, just let me know when you are ready to continue and I will help you walk through the steps to do the testing.

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Customer reply replied 2 years ago
I will thank you
Technician: JohnF2015, Technician replied 2 years ago

We can continue on with testing once you have the meter to do so.

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Customer reply replied 2 years ago
I have a meter but as I said I have never used one so please be clear on what I have to do
Technician: JohnF2015, Technician replied 2 years ago

Okay, first let's test voltage coming to the solenoid.

Set the meter to test VDC.

Touch the red test lead of the meter to the large post of the solenoid that has the cable attached to it that comes from the battery, touch the black lead to a good ground anywhere on the machine and tell me what kind of a reading you have.

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Customer reply replied 2 years ago
The battery read 12.66 volts a the terminal on the solenoid read 12.66 volts
Technician: JohnF2015, Technician replied 2 years ago

Now let's hook your tester to the battery and try to start the machine and see what the voltage reading shows with the key in the start position.

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Customer reply replied 2 years ago
The voltage at the battery was the same 12.63 volts with key in start position or not
Technician: JohnF2015, Technician replied 2 years ago

Okay, we need to check voltage coming to the ignition switch. If you can get to the back of the ignition switch, I need to know if you have voltage coming in to the 'B' terminal on the ignition switch, this is normally a red wire that comes into the connector on the switch.

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Customer reply replied 2 years ago
Disconnected the connector from ignition switch get power to terminal marked P_
P _
_ _
Technician: JohnF2015, Technician replied 2 years ago

Is that P as indicated or 'B'. I am not familiar with a P terminal on any of these switches.

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Technician: JohnF2015, Technician replied 2 years ago

If that is 'B' then let's move on to another check point. On the side of the starter solenoid there is a spade terminal, can you tell me if you are getting voltage to it when the key is turned to the start position?

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Customer reply replied 2 years ago
I checked all terminals with start switch on and of and got no voltage to another connector
Technician: JohnF2015, Technician replied 2 years ago

If you checked them all and had no voltage anywhere else then the ignition switch is bad and needs to be replaced. You should have voltage on at least two of the other terminals when the ignition is turned on and when turned to the start position.

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Customer reply replied 2 years ago
I will order another switch and let you know if that's the problem
Technician: JohnF2015, Technician replied 2 years ago

Based on the information that you have given to me I believe that the switch will solve your problem.

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Customer reply replied 2 years ago
I disconnected the plug from the switch and tested the ports on it and only one of them has power to it, the port
corresponding to the one on the switch. If two terminals on the switch need to indicate power shouldn't the plug?
Technician: JohnF2015, Technician replied 2 years ago

The connector needs to be plugged onto the switch in order to check the voltage that I was looking for. It is easier if you can identify the letter markings on the terminals of the switch so that you can identify where you have voltage if any when you turn the switch.

What you actually want is voltage on the 'B' and the 'S' terminal of the switch when you turn the switch to the start position.

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Customer reply replied 2 years ago
I will do this again when I get a chance
Technician: JohnF2015, Technician replied 2 years ago

No problem just let me know if I can be of further assistance.

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Customer reply replied 2 years ago
There is power to terminals B and S, 12 63 volts, with switch in the start position
Technician: JohnF2015, Technician replied 2 years ago

Are you getting voltage to the small spade terminal on the side of the solenoid?

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Customer reply replied 2 years ago
You didn't mention testing this before. All you requested was to test the terminal were the large red wire
from the battery connects to the soleniod. Do you know how hard it is t get to the solenoid and where its located.
Technician: JohnF2015, Technician replied 2 years ago

No I didn't because if you are not getting voltage to the 'B' terminal on the key switch or the 'S' terminal on the key switch when the key is turned to the start position it would be useless to test for voltage at that point of the solenoid. I understand that it is not easy to get to these items sometimes depending on the machine but we have to check the system one step at a time. It does sometimes mean going back to other items or locations sometimes in order to check the entire system.

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JohnF2015
JohnF2015
JohnF2015, Technician
Category: Small Engine
Satisfied Customers: 1,159
1,159 Satisfied Customers
Experience: Owner/Service Technician at S & J Small Engines

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